class VentaListView(ListView):
context_object_name = 'ventas'
def dispatch(self, request, *args, **kwargs):
self.form = VentaPeriodoForm(request.GET, prefix='venta')
if self.form.is_valid():
self.inicio = self.form.cleaned_data['inicio']
self.fin = datetime.combine(self.form.cleaned_data['fin'],
time.max)
self.item = self.form.cleaned_data['item']
return super(VentaListView, self).dispatch(request, *args, **kwargs)
def get_queryset(self):
return Venta.objects.filter(
recibo__created__gte=self.inicio,
recibo__created__lte=self.fin,
recibo__nulo=False,
item=self.item,
)
def get_context_data(self, **kwargs):
context = super(VentaListView, self).get_context_data(**kwargs)
context['item'] = self.item
context['inicio'] = self.inicio
context['fin'] = self.fin
total = self.get_queryset().aggregate(total=Sum('total'))['total']
if total is None:
total = Decimal()
context['total'] = total
return context
class VentaListView(ListView):
context_object_name = 'ventas'
def dispatch(self, request, *args, **kwargs):
self.form = VentaPeriodoForm(request.GET, prefix='venta')
if self.form.is_valid():
self.inicio = self.form.cleaned_data['inicio']
self.fin = datetime.combine(self.form.cleaned_data['fin'], time.max)
self.item = self.form.cleaned_data['item']
return super(VentaListView, self).dispatch(request, *args, **kwargs)
def get_queryset(self):
return Venta.objects.filter(
recibo__created__gte=self.inicio,
recibo__created__lte=self.fin,
recibo__nulo=False,
item=self.item,
)
def get_context_data(self, **kwargs):
context = super(VentaListView, self).get_context_data(**kwargs)
context['item'] = self.item
context['inicio'] = self.inicio
context['fin'] = self.fin
context['total'] = sum(v.total() for v in self.object_list)
return context
